public class Test {
    public static void main(String[] args) {
        People people = new People(1.70,64.5);
        System.out.println(people.getHeight());
        System.out.println(people.getWeight());
        Beijingman beijingman = new Beijingman(1.80,65);
        beijingman.beijingOpera();
        beijingman.speakHello();
    }
}
